1981: Assertion (A) :
A tennis ball will bounce higher in Calcutta than it would in Shimla.
Reason (R) :
The downward pull due to gravity is less and air is more rarefied in Shimla than in Calcutta.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
1982: Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not?
(a) Microscope
(b) Lead plate
(c) Scintillation counter
(d) Spectrophotometer
1983: Which of the following fish are bred exclusively in the cold regions of India ?
I. Catla.
II. Tinca.
III. Bhekti.
IV. Trout.
Choose the correct answer from the codes given below.
Codes:
(a) I and lV
(b) I and IV
(c) II and IV
(d) III and IV
1984: The members of the Constituent Assembly which drafted the Constitution of India were
(a) nominated by the British Parliament
(b) nominated by the Governor General
(c) elected by the Legislative Assemblies of various provinces
(d) elected by the Indian National Congress and Muslim League
1985: The centre of gravity of the floating ship:
(a) Lies above the metacentre
(b) Lies below the metacentre
(c) Coincides with the metacentre
(d) None of the above